| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| TIMKEN | SET21 | Direct Cross Interchange | 24 |
| FORD | D0RY1201A | Direct Cross Interchange | 16 |
| SEALED POWER | FS21 | Direct Cross Interchange | 16 |
| CHRYSLER | 9192125 | Direct Cross Interchange | 16 |
| ITM | 3804004 | Direct Cross Interchange | 16 |
| IHC | 392674R91 | Direct Cross Interchange | 16 |
| IHC | 3049843R91 | Direct Cross Interchange | 16 |
| IHC | 3043872R91 | Direct Cross Interchange | 16 |
| IAPCO | L0113003 | Direct Cross Interchange | 15 |
| WORLD PARTS | W72414 | Direct Cross Interchange | 15 |
| SKF | NO21SET | Direct Cross Interchange | 15 |
| CHRYSLER | P43531 | Direct Cross Interchange | 15 |
| CHRYSLER | 9192015 | Direct Cross Interchange | 15 |
| VERA | 6400642 | Direct Cross Interchange | 15 |
| SKF | BR21 | Direct Cross Interchange | 14 |
| JAGUAR | 431570 | Direct Cross Interchange | 3 |
| MERCEDES-BENZ | 431570 | Direct Cross Interchange | 3 |
| BRITISH LEYLAND | GHB106 | Direct Cross Interchange | 3 |
| BRITISH LEYLAND | 431570 | Direct Cross Interchange | 3 |
| TRIUMPH | 58616 | Direct Cross Interchange | 3 |
| MASSEY-FERGUSON | 641150M91 | Direct Cross Interchange | 2 |
| ISUZU | 5098120150 | Direct Cross Interchange | 2 |
| MIDAS | WB1011 | Direct Cross Interchange | 2 |
| CHICAGO RAWHIDE | BR21 | Direct Cross Interchange | 1 |
| HONDA | 91067505810 | Direct Cross Interchange | 1 |
| FAG | KIT21 | Direct Cross Interchange | 1 |
| Precision Seals & Bearings | A21 | Indirect Cross Interchange | 26 |
| BECK/ARNLEY | 0512303 | Indirect Cross Interchange | 15 |
| NTN | SET21 | Indirect Cross Interchange | 14 |
| NTN | 4T19884T1922 | Indirect Cross Interchange | 14 |
| NTN | 4T19881922 | Indirect Cross Interchange | 14 |
| KOYO | 198822 | Indirect Cross Interchange | 14 |
| KOYO | 19881922 | Indirect Cross Interchange | 14 |
| BMC | GHB106 | Indirect Cross Interchange | 14 |
| BMC | 840505 | Indirect Cross Interchange | 14 |
| BMC | 762445 | Indirect Cross Interchange | 14 |
| BMC | 58616 | Indirect Cross Interchange | 14 |
| BMC | 431570 | Indirect Cross Interchange | 14 |
| MASSEY FERGUSON | 641150M91 | Indirect Cross Interchange | 14 |
| CASE IH | 3049843R91 | Indirect Cross Interchange | 14 |
| FAG | K1988K1922 | Indirect Cross Interchange | 14 |
| CASE IH | 3043872R91 | Indirect Cross Interchange | 14 |
| PERFECT CIRCLE | A21 | Indirect Cross Interchange | 14 |
| RENAULT | 34970900 | Indirect Cross Interchange | 14 |
| ACDelco | 19881922 | Indirect Cross Interchange | 14 |
| IAPCO | L0171005 | Indirect Cross Interchange | 14 |
| Daimler-Benz | 431570 | Indirect Cross Interchange | 14 |
| FORD | 70EB1200AA | Indirect Cross Interchange | 14 |
| Spicer-Dana | 4468601 | Indirect Cross Interchange | 14 |
| FORD | 1516151 | Indirect Cross Interchange | 14 |
| RIV | 01043620 | Indirect Cross Interchange | 14 |
| FORD | 1443212 | Indirect Cross Interchange | 14 |
| ABC | A21 | Indirect Cross Interchange | 14 |
| FORD | 109E1215A1A | Indirect Cross Interchange | 14 |
| BOWER | A21 | Indirect Cross Interchange | 14 |
| FORD | 109E1200A1 | Indirect Cross Interchange | 14 |
| BOWER | 19881922 | Indirect Cross Interchange | 14 |
| SKF | K1988K1922 | Indirect Cross Interchange | 14 |
| L&S Bearing | S21 | Indirect Cross Interchange | 14 |
| L&S Bearing | A21 | Indirect Cross Interchange | 14 |
| NDH | S21A | Indirect Cross Interchange | 14 |
| CR | BR21 | Indirect Cross Interchange | 14 |
| ISUZU | 9000930680 | Indirect Cross Interchange | 14 |
| ISUZU | 0000930680 | Indirect Cross Interchange | 14 |
| ISUZU | 0000930160 | Indirect Cross Interchange | 14 |
| HONDA | 910675048100 | Indirect Cross Interchange | 14 |
| GM | 9440614 | Indirect Cross Interchange | 14 |
| FORD | ERR3 | Indirect Cross Interchange | 14 |
| MASSEY FERGUSON | 895700M91 | Indirect Cross Interchange | 14 |
| GREEN | S21A | Indirect Cross Interchange | 14 |
| TIMKEN | 19881922 | Indirect Cross Interchange | 14 |
| SKF | BR1988 | Indirect Cross Interchange | 3 |
| SKF | BR1922 | Indirect Cross Interchange | 2 |
| CHAMPION | 6821675 | Indirect Cross Interchange | 1 |
| FORD | DORY1201A | Indirect Cross Interchange | 1 |
| MACK | 1458BR21 | Indirect Cross Interchange | 1 |
| BECK/ARNLEY | 672303 | Indirect Cross Interchange | 1 |
| Precision Seals & Bearings | SeeComment | Indirect Cross Interchange | 1 |
| PTC | PTA21 | Indirect Cross Interchange | 1 |
| BAP/GEON | 3804004 | Indirect Cross Interchange | 1 |
| DT Components | SeeComment | Indirect Cross Interchange | 1 |
| McQuay-Norris | BT21S | Indirect Cross Interchange | 1 |